Galvanized welded steel pipe for engineering science and technology
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 18000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Credit Rating, Credit Services, Credit Purchasing
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Item specifice
Standard:
GB
Technique:
ERW
Shape:
Square,Round,Rectangular
Surface Treatment:
Galvanized
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,A53(A,B)
Certification:
API
Thickness:
0
Length:
0
Net Weight:
0
1、Structure of Galvanized welded steel pipe for engineering science and technology
:
The surface of galvanized steel pipe welded steel pipe of hot dip galvanized layer or. Galvanized can increase the corrosion resistance of the steel tube, prolong service life. Galvanized pipe is widely used, in addition to water, gas, oil and other general low pressure fluid pipelines.
2、Main Features of Galvanized welded steel pipe for engineering science and technology
• High manufacturing accuracy
• High strength
• Good visual effect
• Reasonable price
3、 Galvanized welded steel pipe for engineering science and technology Specification：
Standard | GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007 |
Grade | 10#-45#, 16Mn 10#, 20#, 45#, 16Mn |
Thickness | 1 - 33 mm |
Section Shape | Round |
Outer Diameter | 21 - 610mm |
Place of Origin | Tianjin, China (Mainland) |
Secondary Or Not | Non-secondary |
Application | Hydraulic Pipe |
Technique | Cold Drawn |
Certification | API |
Surface Treatment | factory state or painted black |
Special Pipe | API Pipe |
Alloy Or Not | Non-alloy |
Length | 5-12M |
Outer Diameter | 21.3-610mm |
Grade | 20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B |
Standard | ASME, ASTM |
1) Material:Q195 Q235 Q345 X42 X52
2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.
3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4、Packaging & Delivery
Packaging Details: | seaworthy package,bundles wrapped with strong steel strip |
Delivery Detail: | 15-30days after received 30%TT |
5、FAQ of Galvanized welded steel pipe for engineering science and technology
①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
6、 Galvanized welded steel pipe for furniture Images：
- Q:What are the common methods of joining steel pipes?
- The common methods of joining steel pipes include welding, threading, and using mechanical couplings. Welding involves fusing the pipes together using heat, while threading involves screwing the pipes together using threads on the ends. Mechanical couplings are devices that connect the pipes together using compression or other means.
- Q:Material of welded steel pipe
- GB/T14980-1994 (large diameter welded pipe for low pressure fluid delivery). Mainly used to transport water, sewage, gas, air, heating, steam and other low-pressure fluid and other uses. Its representative material is Q235 grade a steel.GB/T12770-1991 (stainless steel welded pipe for mechanical structure). Mainly used in machinery, automobiles, bicycles, furniture, hotels and restaurants, decorations and other mechanical parts and structures. Its representative material 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb and so on.
- Q:How do steel pipes handle vibrations?
- The effectiveness of handling vibrations is a well-known attribute of steel pipes. Their strong and rigid nature enables them to withstand various types of vibrations, including mechanical vibrations and seismic activities. The structural integrity and strength of steel pipes are responsible for their resilience. Steel pipes possess high tensile strength, which allows them to resist deformation or breakage when exposed to vibrations. They also exhibit resistance to fatigue, meaning they can endure repeated vibrations without suffering significant damage. This quality makes steel pipes ideal for applications involving constant or cyclic vibrations, such as in industrial settings or for fluid transportation through pipelines. Furthermore, steel pipes have the added advantage of being able to dampen vibrations due to their mass. The weight of the steel pipe aids in absorbing and dissipating the energy generated by vibrations, preventing excessive movement or oscillation. This damping effect contributes to the overall stability and durability of the pipe system. Various measures can be taken to further enhance the ability of steel pipes to handle vibrations. These measures may include the utilization of vibration isolators or dampers, which are devices designed to reduce the transmission of vibrations from the surrounding environment. Additionally, proper installation techniques and regular maintenance can help ensure that steel pipes continue to function optimally under conditions prone to vibrations. In conclusion, steel pipes possess the necessary attributes to effectively handle vibrations, including strength, resistance to fatigue, and the ability to dampen vibrations. Their robustness and durability make them a reliable choice for applications where vibrations are a concern, guaranteeing the safe and efficient transportation of fluids or materials.
- Q:What are the common methods for inspecting the integrity of steel pipes?
- There are several common methods used to inspect the integrity of steel pipes. These methods are crucial to identify any defects or weaknesses in the pipes that could compromise their structural integrity and potentially lead to failures or leaks. 1. Visual Inspection: This is a basic method where an inspector visually examines the external surface of the steel pipe for any signs of damage, such as corrosion, cracks, or deformities. It is a quick and cost-effective method, but it may not detect internal defects. 2. Ultrasonic Testing (UT): UT is a non-destructive testing method that uses high-frequency sound waves to detect flaws in steel pipes. A transducer sends ultrasonic waves into the pipe, and any reflected waves are analyzed to identify defects like cracks or voids. UT is effective for both internal and external inspections and can provide accurate measurements of defect size and location. 3. Magnetic Particle Inspection (MPI): This method is mainly used to detect surface or near-surface defects in ferromagnetic materials like steel. Magnetic particles are applied to the surface of the pipe, and if there is a defect, the particles will gather around it, creating a visible indication. MPI is particularly useful for detecting cracks and other discontinuities that may not be easily visible to the naked eye. 4. Radiographic Testing (RT): RT involves the use of X-rays or gamma rays to inspect the internal structure of steel pipes. The rays pass through the material, and a radiographic film or a digital detector records the image. This method is effective in detecting internal defects such as cracks, voids, or inclusions. However, it requires proper safety precautions due to the use of radiation. 5. Eddy Current Testing (ECT): ECT is a non-destructive testing method that uses electromagnetic induction to assess the integrity of steel pipes. An alternating current is passed through a probe, creating an electromagnetic field. Any changes in the electrical conductivity or magnetic permeability of the material due to defects are detected by the probe, providing information about the pipe's condition. These are some of the common methods used for inspecting the integrity of steel pipes. Each method has its advantages and limitations, and the choice of inspection method depends on factors such as the type of defect to be detected, access to the pipe, and budget constraints. Regular inspection and maintenance using these methods are crucial to ensure the safe and reliable operation of steel pipe systems.
- Q:What are the properties of steel that make it suitable for pipe manufacturing?
- Due to its unique properties, steel is highly favored as a material for manufacturing pipes. The exceptional strength and durability of steel allow it to withstand high pressure and extreme temperatures, ensuring the safe transportation of fluids and gases over long distances without the risk of leakage or breakage. Another significant advantage of steel is its resistance to corrosion. Unlike other materials that can degrade when exposed to corrosive substances such as water, chemicals, and gases, steel remains highly resistant to corrosion. This quality makes steel pipes long-lasting and reliable. Furthermore, steel is a versatile material that allows for the production of pipes in various sizes and shapes. This flexibility enables customization to meet specific project requirements, making steel pipes suitable for a wide range of applications, including water supply, oil and gas transmission, sewage systems, and structural support. Moreover, steel possesses excellent thermal conductivity, which is crucial for applications involving the transportation of hot or cold fluids. Steel pipes efficiently transfer heat, ensuring minimal energy loss during the process. Additionally, steel is an environmentally friendly option for pipe manufacturing due to its recyclability. Steel pipes can be recycled and reused, reducing the demand for new raw materials and minimizing waste generation. In conclusion, the properties of strength, durability, corrosion resistance, versatility, thermal conductivity, and recyclability make steel the ideal choice for pipe manufacturing. These properties guarantee the reliability, efficiency, and longevity of steel pipes in various industries and applications.
- Q:What are the common methods for inspecting the condition of steel pipes?
- Some common methods for inspecting the condition of steel pipes include visual inspection, ultrasonic testing, magnetic particle inspection, dye penetrant inspection, and radiographic testing.
- Q:Can steel pipes be used for high-temperature applications?
- Yes, steel pipes can be used for high-temperature applications. Steel is known for its excellent strength and durability, making it suitable for handling high temperatures. However, the specific grade of steel used and the operating conditions must be considered to ensure it can withstand the desired temperature range without compromising its structural integrity.
- Q:How are steel pipes measured and sized?
- Steel pipes are measured and sized based on their diameter and wall thickness. The standard unit for measuring steel pipes is the nominal pipe size (NPS), which is a North American set of standard sizes for pipes. The NPS is based on the internal diameter (ID) of the pipe, while the wall thickness is specified by the schedule number. The schedule number indicates the thickness of the pipe walls, with higher numbers representing thicker walls. Additionally, steel pipes can also be measured and sized using outside diameter (OD) and wall thickness in millimeters or inches.
- Q:How are steel pipes inspected for quality?
- The quality of steel pipes undergoes a thorough examination process involving diverse techniques and standards. Trained professionals conduct visual inspections to scrutinize the pipes for visible defects such as cracks, dents, or surface irregularities. This examination guarantees that the pipes meet the required specifications and are devoid of any visible flaws. Furthermore, non-destructive testing (NDT) methods are utilized to assess the internal and external quality of the steel pipes. Among the commonly used NDT techniques, ultrasonic testing stands out. This method involves transmitting ultrasonic waves through the pipes to detect any internal defects or inconsistencies in the material. It effectively identifies issues such as variations in wall thickness, inclusions, or weld defects that could compromise the pipe's integrity. Another widely employed NDT technique is magnetic particle inspection. By utilizing magnetic fields and iron particles, this method identifies surface cracks or flaws in the steel pipes. It is particularly effective for detecting defects in ferromagnetic materials and can be performed on both the outer and inner surfaces of the pipes. Moreover, hydrostatic testing is frequently conducted to evaluate the strength and pressure resistance of the pipes. This process involves filling the pipes with water or a suitable fluid and subjecting them to a specified pressure to check for leaks or structural weaknesses. This test ensures that the pipes can withstand the intended operational conditions without failing. In addition to these techniques, various quality control measures are implemented throughout the manufacturing process. These measures include material traceability, dimensional checks, and chemical composition analysis. They play a crucial role in ensuring that the steel pipes meet the required standards and specifications, thereby guaranteeing their quality and reliability. In summary, the inspection of steel pipes for quality involves a comprehensive approach encompassing visual inspection, non-destructive testing methods, and quality control measures. These thorough procedures enable the identification of defects, inconsistencies, or weaknesses, ensuring that the pipes meet the necessary quality standards and are suitable for their intended purpose.
- Q:How do you determine the maximum allowable stress for a steel pipe?
- To determine the maximum allowable stress for a steel pipe, several factors need to be considered. These include the material properties of the steel, such as its yield strength, ultimate tensile strength, and elongation. Additionally, the pipe's dimensions, wall thickness, and the intended application or service conditions must be taken into account. By considering these factors, along with relevant design codes and standards, engineers can calculate the maximum stress that the steel pipe can safely withstand without experiencing failure.
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Galvanized welded steel pipe for engineering science and technology
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 18000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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